Top cup flushing: <br>seawater and freshwater flushing (freshwater protein skimmer does not include seawater flushing), solenoid valve automatic control, factory preset 10 minutes-10 seconds, the <br>switching frequency can not be less than 5 minutes. <br>Note that the lift rod for seawater flushing rises and falls smoothly, and is regularly disassembled for cleaning. <br>When flushing with fresh water, the water supply has scale accumulation, which causes the jet head to be blocked. It needs to be disassembled for cleaning regularly.
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